Derailment brake appliance.



W. R` CARROLL.

DERAILMENT BRAKE APPLIANCE.

APPLICATION FILED Nov. 1, 1913.

1,089,623. Patented Mar.10,1914.

l 2 SHEETS-SHEBT 1. @l

Inventor,

Attorneys.

COLUMBIA PLANOGRAPH Co.,WAsH.lNu1-DN. D. c.

W. R. CARROLL.

DERAILMBNT BRAKE APPLIANCE.

APPLICATION FILED NOV,1, 1913.

1,089,623. Patented Mar. 10, 1914.

z SHEETS-SHEET 2.

Inventor, ,l b

y l I a Attorneys,

CDLUMBM PLANoaRAPl-l Co., WASHINGTON. D, C.

itlhlllll' nWILISLA'DJ R. CARROLL, OF MANY, LOUISIANA.

DERAILIVIENT BRAKE APPLIANCE.

ressens.

Specification or Letters Patent.

.Application filed November 1, 1913.

Patented Mar.. id, 1914:. serial No. 79s, ii.

1" b all whom t may concern Be it known that l, WILLIAM lit. CARROLL, acitizen of the United States, residing1 at Many, in the parish of Sabineand State of Louisiana, have invented a new and useful Derailment BrakeAppliance, ot which the following is a specification.

rJlhe present invention appertains to a dei-ailment brake appliance, andis particularly an improvement over the derailment brake disclosed in myformer Patent #732,921, issued July 7, 1903.

lt is the primary object oit the present invention to provide anappliance ot the nature indicated, which shall be so constructed andoperable as to open the train pipe, should the truck wheels of a carbecome derailed, the present device being comparatively simple,unencumbering and inexpensive in construction, as well as being simplepractical and etlicient in its use.

lt is also the object of the present invention to provide a` device ofthe character specilicd, which will under ordinary conditions permit ofthe swaying and vertical movements ot the car body without the liabilityof opening or bleeding the train pipe, the device being of uniqueconstruction and operation in order that the train pipe may beunfailingly opened, should the truck wheels become derailed.

llVith the foregoing general objects outlined, and with other objects inview, which will be apparent as the nature of the invention is betterunderstood the present invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment ol2 the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit oit theinvention.

rEhe invention has been illustrated in its preferred embodiment in theaccompanying drawings, wherein Figin'e 1 is a ragmental side elevationof a railway car having the present appliance applied thereto. Fig. f2is a cross sectional detail of the car, illustrating the presentappliance. Fig. 8 is an enlarged sectional view of one of the airchambers or compartments and associate parts. Fig. lis a bottom view otthe air chamber or compartment. Fig. 5 is a fragmental plan view of oneof the air chambers with its hanger and hanger arm.

In the drawings, the numeral 1 designates the car body, which hasmounted below the bottom thereof, the train pipe 2, said body beingcarried by the truck 3 including the rail engaging wheels l.

ln carrying out the present invention, a hanger or pendant 5 issuspended over each rail, from a carrier or bearing G secured to thebottom of the car body, the hanger 5 being loosely connected to thecarrier or bearing 6. lt is preferable to employ a pair of hangers 5with each truck ot each car, the hangers o1 each pair being` oppositelydisposed adjoining certain wheels ot the truck, as illustrated in thedrawings. rli`he hangers or pendants 5 are preferably fashioned frombars or straps of metal, the upper end portions of which are formed intosprings, as at 7, and the lower or tree ends o1 which carry the airchambers or compartn'ients, indicated generally at 8. The hangers 5 areadapted to flex laterally and are connected intermediate their ends by atie rod or stay 9, in order that the hangers will vibrate or oscillatelaterally in unison.

A guide 10 is provided for each hanger or pendant the said guide beingpreferably fashioned from a rod or bar oit metal, bent intermediate itsends, and having a guiding loop or eye 11 at its intermediate point,through which the hanger 5 passes. The terminals of each guide 10 areconnected or attached to bearings or carriers 12 secured to the bott-omot the car body, and the portions of the guide arms or sectionsadjoining the terminals being flattened, as at 13, to act as leafsprings. lhe spring portions 13 will permit the guides to i'leXlaterally with the hangers, as will be apparent, and will normallymaintain the hangers in position over the rails.

A horizontal arm 1a is attached to each hanger or pendant 5, andprojects behind the inner side or tace of the respective wheel 4L, thefree ends of the arms 14c standing between the opposite wheels, andbeing preferably provided with rollcrs or wheels 15 to contact with t-heinner or adjoining faces of the wheels. rlhe rollers 15 are preferablynormally spaced from the wheels, to permit the slight play between thewheels and hangers under ordinary conditions.

Returning speciiically to the air chambers or compartments 8 each ot thesaine cmbodies a hollow body or casing 16, which is elongated anddisposed horizontally and transversely over the respective rail. Theintermediate portion of the body or casing 16 is arched upwardly as at17, and the end portions 18 of the body or casing are provided withlower openings, as best seen at 1S in Fig. 3. Closure plates 19 areclamped on the bot-toms ot the end portions 1S ot the body or casing 16,bolts 2O being connected to the plates 19 and engaging the upper portionof the body 16 to tightly secure the plates 19 in position. The casing16 and the plates 19 are preferably provided with ground joints in orderto prevent leakage. Each of the plates 19 is provided with a centralopening or out-let port 21, which has a seat 22 at its inner end,against which a valve 23 is seatable, the valve having a longitudinallygrooved stem 24C slidable through the opening 21 and normally dependingbelow the plate 19. The plate 19 is also provided in its bottom tace,with grooves 25 eX- tending radially from the opening 21 for thepurposes which will hereinafter appear. Each of the air chambers orcompartments is connected to the train pipe 2, and to this end, each ofthe bodies or casings 16 is provided with an upstanding nipple 26 at oneend portion 18, a hose or flexible tubing 27 having one end engaged overthe nipple 26, and having its other end attached to the train pipe 2 tocommunicate therewith.

In connecting each ot the casings or bodies 16 to the respective hangeror pendant 5, the lower end of the hanger or pendant is pro vided withay vertically elongated opening or slot 28, and a pin 29 is engagedthrough the slot 28 and terminally engages the back of the body 16 topivotally and slidably connect the body to the hanger. Each ot thehangers 5 is also equipped with a pair of leaf springs 30 adjoining itslower end, the tree ends of which project toward but are normally spacedslightly from the backs of the end portions 18 of the body 16.

The air brakes are held in inoperative position by the air which isunder compression within the train pipe, hose sect-ions 27 and airchambers 8. r1`he valves 23 being seated by the compressed air willprevent the air from escaping under normal conditions. The archedportions 17 of the casings or bodies 16 being disposed directly over therails will permit t-he car body to sway and vibrate without theliability ot the valves 28 being opened, it being noted that the saidvalves are disposed at the opposite sides ot the rails. The hosesections 27 will also permit the hangers or pendants 25 to swingslightly without interference, while the pivotal connections of thecasings 16 with the hangers will permit the casings to swing laterallyto a limited extent, as may be desirable.

The entire apparatus is compactly housed and protected underneath thecar body, and is also readily accessible from the sides ot .the carbody, although the apparatus does not encumber the side portions ot thecar body.

Perchance, should the truck wheels, become derailed, the car body beingmoved laterally or transversely of the track, and being depressed due tothe derailment ot the wheels, will move the casings or bodies 16similarly, and consequently the valves 23 at the respective ends ot thecasings, will be lifted or raised from their seats by the engagement ofthe valve stems with the heads or balls of the rails. This will resultin opening the train pipe, the air passing out through the openings orports 21, which will bring the automatic air brakes into operation tocheck or arrest the movement ot the train so as to avoid seriousresults, such as a wreck, or the like.

Attention is directed to the tact that although the valves, which are ofthe check valve type are disposed at the opposite sides ot the railsunder normal conditions, certain of the valves will be brought intoengagement with the rails when the wheels become derailed toward oneside or the other, whereby the opening or bleeding of the train pipewill be effected in an untailing manner. rlhe grooves 25 in the bottomsof the plates 19 extending radially from the openings 21, will permit ofthe escape oi" air, should the openings 21 be closed due to therespective plates 19 seating upon the rail heads or balls.

The tie or stay bar 9 will cause both ot the hangers to movesimultaneously, that is, transversely of the car body, which is ofparticular advantage in connection with the arms 14. Thus, should thewheels become derailed without the car body moving lat erallyappreciably, the lateral or transverse movement of the wheels will causeone or the other of the wheels to engage one of the arms 141, andconsequently, the hangers or pendants 5 will be swung transversely inorder that the respective valves 23 may be opened. In this manner, thearms 14 standing between the wheels of one pair, will assure of thelateral movement ot the casings or bodies 16 even though the car body isnot moved laterally upon the derailment oil the wheels. The rollers 15being normally spaced from the wheels will permit of the proper play ofthe wheels and car body with respect to one another, as when roundingcurves and the like, without appreciably affecting the positions of thecasings or bodies 16. The sprinfT portions 7 of the hangers or pendantswill permit the lower portions ot' the hangers to yield vertically,

due to the engagement of the casings or bodies 16 with the rails.

1t will be observed that the casings or bodies 16 may ordinarily swingslightly transversely ot the rails, the casings 16 bel Losanna ingadapted to slide upwardly slightly due to the engagement ot the pins .29carried by the casings through the slots Q8 of the hangers. This is ofimportance inasmuch as when the end portions of the casings 16 engagethe rails, the said end portions Will be forced upwardly slightly undercertain conditions, which will cause the said portions of the casings toengage the respective balancing springs 30 to yielding-ly hold the saidend portions oi the casings against the rails.

From the foregoing, the missions of the various parts of the presentappliance will be apparent to those skill-ed in the art, and the otheradvantages of the present device will also be obvious Without -furthercomment, it being noted that the objects aimed at have been carried outsatisfactorily, and that the present device is a desirable one for thepurposes intended.

Having thus described the what is claimed as new is 1. 1n a. device ofthe character described, an elongated body adapted to be disposedtransversely above a rail, the body being arched intermediate its ends,means 'for suspending the body from a car body, and air brakecontrolling means carried by the end portions or' the aforesaid body andcoperable with the rail.

2. 1n a device of the character described, an air chamber adapted to bcdisposed trans- 1rersely oit a rail, means for suspending the airchamber from a car body, means for connecting the air chamber to a`train pipe, and valves carried by the air chamber at the sides of therail and arranged to be opened by the rail.

8. 1n a device ci the character' described, a car carried hanger, anelongated air chamber adapted for connection With a train pipe andadapted to be disposed transversely of a rail, the said chamber being`arched intermediate its ends, the intermediate portion of the airchamber' being pivotcd to the b anger, valves carried by the endportions oit the air chamber and coperable with the rail, and balancingsprings disposed Between the hanger and the end portions of the airchamber.

ln a device of the character described, a car carried hanger, an airchamber arranged to be disposed transversely over a rail and adapted'for connection to the train pipe, the air chamber being pifctcd to thehanger to swing transversely, valves for the end portions oit the airchamber, and balancing springs between the end portions ot the airchamber and hanger.

1n a 'device of the character described, an air chamber arranged forconnection invention,

with a train pipe and adapted to stand transversely over a rail, meansfor suspending the air chamber from a car body, the air chamber havinglower outlet at the sides of the rail, and valves seatable over 'thesaid ports and having stems depending through the ports for cooperationwith the rail.

G. 1n a device oit the character described, a car carried hanger, anelongated air chamber adapted to be disposed transversely over a railand arranged for connection with a train pipe, the air chamber beingarched intermediate its ends and being pivoted to the hanger to swingtransversely ot' the rail, the air chamber having lower outlet portsadjoining its ends, valves seatablc over the said ports and havingdepending stems coperable with the rail, and yieldable balancing meansbetween the end portions oi the air chamber and the hanger.

7. 1n a device of the character described, a car carried hanger, a bodycarried thereby, air brake controlling means carried by the bodycooper-able with a rail, and means carried by the hanger and coperableWith car Wheel to move the said body transversely with the car Wheel.

8. 1n a device oi' the character described, opposite car-carriedhangers, means connecting them, members carried by the hangers arrangedto be suspended over the rails, air brake controlling means carried bythe said members and coperable With the rails, and arms cari" d by thehangers and cojerable with cei in car wheels.

9. In a device of the character described, car-carried hangers, memberscarried by the hangers and adapted to bc disposed transversely over therails, a tie bar connecting the hangers, arms carried by the hangers andcooperating with certain car Wheels, and air brake, controlling meanscarried by the aforesaid members at the sides of and coperable with therespective rails.

1.0. 1n a device oit the character described, a car carried hanger, anelongated body adapted to be disposed above a rail and pivote-dintermediate its end to the hanger to swing transversely, air brakecontrolling means carried by the end portions of the said body andcoperable with the rail, and balancing springs disposed Within `thehanger and the end portions of the said body.

1n testimony that lf claim the foregoing as my own, l have heretoa'liixed my signature in the presence ot tivo Witnesses.

llilllliLL-'h'l B. CARROLL. lVitnesses:

W. 1V. Smarrita, d. E. Sirinnnn.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

